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C is very powerful; it has been used to develop operating systems, databases, applications, etc. They are respectively concerned with integer quantity, single character, numbers, with decimal point or exponent Programmers embrace C because it gives maximum control and efciency to the programmer. However, some bad people may start selling this material to some innocent students for some money! The basic data types in C language are int, char, float and double. Several types of C constants that are allowed in C are: 1. . Following Topics Are Covered In C Programming Handwritten Notes PDF: Variables, Constants & Keywords Instructions & Operators Conditional Instructions Loop Control Instructions Functions & Recursions Pointers Arrays Strings Structures File I/O Dynamic Memory Allocation etc OTHER SUBJECTS NOTES It is generally used to create hardware devices, OS, drivers, kernels, etc. Also, this fact alludes to the extreme performance of the language. 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